DoubleLine ETF Trust - DoubleLine Opportunistic Core Bond ETF is an exchange traded fund launched and managed by DoubleLine ETF Adviser LP. The fund invests in fixed income markets of global region. It primarily invests in fixed income instruments including securities issued or guaranteed by the U.S. government, its agencies, instrumentalities or sponsored corporations, corporate obligations, agency and non-agency mortgage-backed securities of any kind, including commercial and residential mortgage-backed securities, asset-backed securities, securitized investments such as collateralized debt obligations, including collateralized loan obligations, municipal bond securities, securities offered through private placements, fixed and floating rate loans of any kind. It invests in securities of varying maturities. It seeks to benchmark the performance of its portfolio against the Bloomberg U.S. Aggregate Bond Index. DoubleLine ETF Trust - DoubleLine Opportunistic Core Bond ETF was formed on March 31, 2022 and is domiciled in the United States.